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Example of drive parameters assignment to the "PDC output data descriptor" and "PDC input data descriptor"
objects in case of Profibus-DP interface card with two Id-Bit drive parameters.
1'
1 -
Drive Parameter A
2-
Not used
3 -
Drive Parameter B
4 -
Not used
Data type: Unsigned1 6
Data type: Unsigned 16
Subindex of the "PDC input
Meaning of the object
Process data
data descriptor" object
element
channel word number
0
Index of the drive parameter A
0
(16 Bits)
0
Subindex of the drive parameter A
0
1
Nqt used.
1
Index = 0000
1
Not used.
1
Subindex = 00
2
Index of the drive parameter B
2
(16 Bits)
2
Subindex of the drive parameter B
2
3
Not used.
3
Index = 0000
3
Not used.
3
Subindex = 00
4.1. EXAMPLE OF PDC CONFIGURATION DATA FRAME SETTING
Example No. 1:
The
Ramp Ref 1
parameter of the GE DV-300 drive must be assigned to the Word No. 1 of the PDC output data.
Being such parameter an Unsigned 16, it has a 16-Bit width and can be therefore assigned to a Process Data
Channel.
The required numerical information is :
1 ) Index of the PDC output data configuration parameter : 6001 h.
2 ) Word Number involved : 1.
3 ) Ramp Ref 1
parameter index of the DV-300 drive : 202Ch.
4 ) Ramp Ref 1
parameter subindex of the DV-300 drive : Oh.
i
PROCESS DATA CHANNEL CONTROL
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